package com.itheima.mapper;


import com.itheima.pojo.Emp;
import com.itheima.pojo.EmpQueryParam;
import org.apache.ibatis.annotations.*;

import java.time.LocalDate;
import java.util.List;
import java.util.Map;

@Mapper
public interface EmpMapper {

    // 原始分页查询方式
   /* @Select("select count(*) from emp e left join dept d on e.dept_id=d.id")
    public Long count();


    @Select("select e.*,d.name deptName from emp e left join dept d on e.dept_id=d.id " +
            "order by e.update_time desc limit #{start},#{pageSize} ")*/

    //利用PageHelper进行分页查询

    //@Select("select e.*,d.name deptName from emp e left join dept d on e.dept_id=d.id order by e.update_time desc")
    //public List<Emp> list(String name, Integer gender, LocalDate begin, LocalDate end);

    public List<Emp> list(EmpQueryParam empQueryParam);




    void deleteByIds(List<Integer> ids);

    Emp getById(Integer id);

    void updateById(Emp emp);

    @MapKey("pos")
    List<Map<String,Object>> countEmpJobData();

    @MapKey("name")
    List<Map<String, Object>> countEmpGenderData();

    @Options(useGeneratedKeys = true, keyProperty = "id") //获取到生成的主键 -- 主键返回
    @Insert("insert into emp(username, name, gender, phone, job, salary, image, entry_date, dept_id, create_time, update_time)" +
            " values (#{username}, #{name}, #{gender},#{phone},#{job},#{salary},#{image},#{entryDate},#{deptId},#{createTime},#{updateTime})")

    void insert(Emp emp);

    @Select("select * from emp where username = #{username} and password = #{password}")
    Emp getUsernameAndPassword(Emp emp);
}
